Non-invasive paper-based sensors containing rare-earth-doped nanoparticles for the detection of D-glucose.

Today, diabetes mellitus is one of the most common diseases that affects the population on a worldwide scale. Patients suffering from this disease are required to control their blood-glucose levels several times a day through invasive methods such as piercing their fingers. Our NaGdF: 5% Er, 3% Nd nanoparticles demonstrate a remarkable ability to detect D-glucose levels by analysing alterations in their red-to-green ratio, since this sensitivity arises from the interaction between the nanoparticles and the OH groups present in the D-glucose molecules, resulting in discernible changes in the emission of the green and red bands.

Impact of COVID-19 on patients undergoing scheduled procedures for chronic venous disease.

Objective: The COVID-19 pandemic has drastically altered the medical landscape. Various strategies have been employed to preserve hospital beds, personal protective equipment, and other resources to accommodate the surges of COVID-19 positive patients, hospital overcapacities, and staffing shortages. This has had a dramatic effect on vascular surgical practice.

Biomimetic Stents for Infrainguinal Peripheral Arterial Disease: Systematic Review and Meta-Analysis.

Objective: Biomimetic stents are peripheral infrainguinal self expanding stents that mimic the anatomy of the vasculature and artery movement. They are indicated for use in infrainguinal arteries. This research aimed to synthesise all current evidence on the use of biomimetic stents as adjuncts for endovascular treatment of infrainguinal peripheral arterial disease (PAD), helping to guide clinical decision making.

Analysis of clinical outcomes of arteriovenous fistula for hemodialysis access in a Mexican elderly population.

Objective: The increased survival rates of end-stage renal disease (ESRD) patients have impacted directly in the proportion of elderly patients requiring a reliable hemodialysis (HD) access; this group clearly demands an individualized approach. We aim to analyze maturation and patency rates of arteriovenous fistulas (AVF) in elderly patients.

Methods: This was retrospective review of a database of patients that underwent AVF creation in our institution.

Eosin Y-Functionalized Upconverting Nanoparticles: Nanophotosensitizers and Deep Tissue Bioimaging Agents for Simultaneous Therapeutic and Diagnostic Applications.

Functionalized upconverting nanoparticles (UCNPs) are promising theragnostic nanomaterials for simultaneous therapeutic and diagnostic purposes. We present two types of non-toxic eosin Y (EY) nanoconjugates derived from UCNPs as novel nanophotosensitizers (nano-PS) and deep-tissue bioimaging agents employing light at 800 nm. This excitation wavelength ensures minimum cell damage, since the absorption of water is negligible, and increases tissue penetration, enhancing the specificity of the photodynamic treatment (PDT).

Physiological and clinical impact in the carotid baroreceptor function following the surgical management of bilateral carotid body tumors.

Objective: The bilateral presentation of Carotid Body Tumors (CBT) is rare; the surgical resection of these masses remains the mainstay management due to the malignant potential. We aim to describe, classify, and quantify baroreceptor failure (BRF) after the surgical management of patients with bilateral CBT to better understand the clinical consequences.

Methods: Retrospective review of patients that underwent bilateral CBT resection to assess the changes in baroreceptor function.

Five-year survival after retroperitoneal oncologic resection with and without vascular surgeon intervention.

Objectives: Retroperitoneal tumor resection commonly disturbs major vessels; therefore, surgical teams can recruit vascular surgeons to prevent injuries and improve the prognosis of oncologic patients. The objective of the present study is to establish long-term survival after retroperitoneal tumor resection surgery with an emphasis on the potential impact of preventing or repairing major vessel injuries when tumors are adjacent to the aorta or vena cava.

Methods: Retrospective case series including all cases of surgical removal of retroperitoneal tumors between 2007 and 2020 in a highly specialized hospital in Mexico City.

Surgical Intervention for Phlegmasia Cerulea Dolens in a 61-Year-Old Cancer Patient.

Phlegmasia cerulea dolens, a rare and potentially fatal complication of acute deep vein thrombosis, is characterized by substantial edema, intense pain, and cyanosis. Phlegmasia cerulea dolens may compromise limb perfusion and lead to acute ischemia, gangrene, amputation, and death. We present the case of a 61-year-old woman with a history of breast cancer who had signs and symptoms of phlegmasia cerulea dolens in her left leg.

Surgical Management of a Type II Extracranial Internal Carotid Aneurysm near to the Skull Base.

True aneurysmal disease in the carotid arteries is very uncommon, but individuals with this pathology face the grave risk of thromboembolism, which may consequently lead to cerebrovascular accidents. Clinical knowledge remains relatively limited owing to its rarity. We present the case of a 41-year-old obese female with a type II right extracranial internal carotid artery aneurysm incidentally found during imaging work-up.

Clinical Outcomes of Pulmonary Embolism in Mexican Patients With COVID-19.

Coagulation abnormalities have been reported in COVID-19 patients, which may lead to an increased risk of Pulmonary Embolism (PE). We aimed to describe the clinical characteristics and outcomes of COVID-19 patients diagnosed with PE during their hospital stay. We analyzed patients with PE and COVID-19 in a tertiary center in Mexico City from April to October of 2020.

Favorable Conservative Management of a Rare Primary Aortitis Secondary to Listeria Monocytogenes: Case Report and Review of the Literature.

Primary aortitis (PA) secondary to Listeria monocytogenes is extremely rare with only a few cases reported in the literature. Presently, there is no consensus concerning the best treatment when no complications are found in the thoracic computed tomography (CT) imaging. This report illustrates the clinical presentation and favorable clinical course of a rare case of PA secondary to in an 82-year-old diabetic woman, successfully treated with conservative management with 18 months of follow up.

Physician-Modified Endovascular Gore Excluder Graft (Handmade Modified) for Complex Abdominal Aortic Aneurysm: A Step-by-Step Approach.

Endovascular repair has become the gold standard for the treatment of infrarenal abdominal aortic aneurysmal disease. Branched and fenestrated commercially custom-made devices have been developed as a treatment option for short necks or juxtarenal aneurysms. However, the lack of availability in some countries and centers, manufacturing time (6-8 weeks requirements), urgent setting in ruptured abdominal aortic aneurysms, and elevated costs make them not a widespread option.

Complex Aortic, Visceral and Renal Arteries Reconstruction with a Four-Branch Dacron Graft for Middle Aortic Syndrome Secondary to Takayasu's Arteritis.

The middle aortic syndrome (MAS) is an uncommon clinical expression as a result of isolated stenosis or complete occlusion of the descending thoracic and/or abdominal aorta; Takayasu's arteritis (TA) is a rare vasculitis and a recognized etiology of MAS. We herein present the case of a 52-year-old woman with refractory renovascular hypertension and progressive bilateral lower extremity claudication; she had known history of TA. A computed tomography angiography demonstrated an aortic occlusive lesion compromising the origin of the celiac trunk, superior mesenteric, and bilateral renal arteries.

Successful Treatment of a Superficial Femoral Artery Pseudoaneurysm with Balloon Tamponade.

The development of post-catheterization arterial pseudoaneurysms is one of the most common vascular access complications following angiographies and endovascular interventions. Different therapeutic options to treat these lesions have been used. We herein report the case of a 79-year-old woman who was referred to our service for evaluation with a post-catheterization superficial femoral artery pseudoaneurysm measuring 4 cm.

Comparison of axillary-atrial and axillary-iliac arteriovenous grafts for hemodialysis access creation.

Objective: The aim of this study was to compare two complex vascular access techniques that utilize the axillary artery as inflow and accesses were created with early cannulation grafts: the axillary-atrial arteriovenous graft versus axillary-iliac arteriovenous graft.

Methods: This is a retrospective study of end-stage renal disease patients with occluded intrathoracic central veins that underwent complex hemodialysis access creation in our institution after failed endovascular recanalization attempts. Patients' demographics, comorbidities, number and types of previous accesses, intraoperative variables, and clinical outcomes were collected and compared.